New #attractor dweets

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

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thorbear

function u(t) {

a=b=t;s=400;x.globalAlpha=.05;for(i=2e3;--i;)x.fillStyle=R(s*a*b,0,i),x.fillRect(960+a*s,540+b*s,5,5),a=S(2*b)-C(5*a),b=S(-2*a)-C(3*b)

Jan 30 2019 11:52 PM UTC

}// 134/140

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dejong

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u/rodrigo.siqueira

Great!! This is the famous Clifford Pickover Attractor!! It appears in his book Chaos in Wonderland (by the way, I am cited in this book as a fractal poet). Many beautiful variations of this Attractor can be made by changing only 4 parameters. #fractal
u/katkip

I don't understand
u/SMON

I wonder what's going on here. Is there any way to understand this? :)
u/thorbear

Didnt know about Clifford. Used the formulae on P.Bourkes page: http://paulbourke.net/fractals/peterdejong/
u/thorbear

He also has one on the Clifford attractor under /fractals/clifford
u/robbyg

Well done with the #attractor -- I didn't get color in mine: https://www.dwitter.net/d/8503
u/rodrigo.siqueira

Similar to #pickover attractor

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robbyg

function u(t) {

t||(X=[...Array(50).keys()],Y=[...X]);for(i=50;i--;)h=X[i],x.fillRect(X[i]=950+(S(1*Y[i])-C(2*h))*440,Y[i]=550+(S(3*h)-C(4*Y[i]))*230,5,5)

Jun 8 2018 5:53 PM UTC

}// 138/140

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Peter de Jong attractor. Changing the 1, 2, 3, 4 multipliers in the sine/cosine functions changes the shape.

u/robbyg

#attractor
u/rodrigo.siqueira

Robbyg, here is a smaller version with higher resolution. Same equation, no need to create array: t||(h=X=Y=0);for(i=950;i--;) X=950+(S(1*Y)-C(2*h))*440, Y=550+(S(3*h)-C(4*Y))*230, h=X,x.fillRect(X,Y,1,1)

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loni_art

function u(t) {

t?(d=X+.1*(Y-X),e=Y+.01*(X*(28-Z)-Y),Z+=.01*(X*Y-8/3*Z),X=d,Y=e,x.fillRect(Z*20+o,X*20+o,9,9)):(X=.2,Y=Z=2,d=e=o=550,x.globalAlpha=.2)

Jun 4 2018 6:35 PM UTC

}// 134/140

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Lorentz

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u/loni_art

#chaos
u/loni_art

to have fun: modify the x,y,z variables
u/DataMeta

Amazing... It's like pseudo orbital mechanics! This inspired me to finally try something in "3D"
u/zanella

Been wanting to do a Lorentz system ever since I first saw Dwitter. Congrats! :)
u/BirdsTweetCodersDweet

#Lorenz #Attractor #lorenz #attractor #lorenzattractor
u/Mannaggia

<3

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joeytwiddle

remix of d/4805 by u/Jezza

function u(t) {

c.width=640;d=-2.1;e=1.9;for(i=l=j=t;i<6e4;i++)k=S(d*l)+C(t)*C(j*d),m=S(e*j)+S(t)*C(l*e),j=k,l=m,x.fillRect(320+j*100,180+l*70,.3,.3)

Dec 30 2017 3:29 PM UTC

}// 133/140

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u/xem

Splendid
u/joeytwiddle

I do like adding alpha to other people's attractors http://bit.ly/2pZCrOg http://bit.ly/2DDaPjO
u/joeytwiddle

This version is easier to resize: https://www.dwitter.net/d/5336
u/joeytwiddle

Please do give Jezza an upvote. They did most of the work here!
u/katkip

#attractor

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p01

remix of d/2935 by u/p01

function u(t) {

t?x.fillText(4,Z+=(X+=((Y+=X-(X*Z-Y)/99)-X)/9)*Y/Z-1,99+X):X=Y=Z=1

Jul 24 2017 9:10 PM UTC

}// 66/140

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MICRO-LORENZ

u/p01

Nothing wild really. This is mostly a Dwitter port of http://aem1k.com/lorenz/ which we golfed previously
u/Xen

lorenz64 - #2943,,, he still needs to update that page to my 111b ;-)
u/rodrigo.siqueira

#lorenz #attractor

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p01

function u(t) {

t?x.fillText(4,9*(Z+=(X+=((Y+=X-(X*Z-Y)/99)-X)/9)*Y/Z-1),540+X*9):X=Y=Z=1

Jul 24 2017 9:08 PM UTC

}// 73/140

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MINI-LORENZ

u/p01

Nothing wild really. This is mostly a Dwitter port of http://aem1k.com/lorenz/ which we golfed previously
u/rodrigo.siqueira

#lorenz #attractor

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